2 pcs of 74LS04 Hex Inverter IC 7404 / Integrated Circuit Maximum Operating Temperature: 70 C , Minimum Operating Temperature: 0 C Supply Voltage (Max): 5.25 V, Supply Voltage (Min): 4.75 V High Level Output Current: - 0.4 mA, Low Level Output Current: 8 mA Number of Circuits: Hex, Propagation Delay Time: 15 ns, RoHS: Yes Package / Case: PDIP-14, Product Category: Inverters, Logic Family: LS Logic, Type: Bipolar